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The NGK five‑wire wideband air‑fuel sensor for Audi A8 Quattro (2008–2009) provides a linear air‑fuel ratio output so the vehicle ECU can make precise mixture adjustments for optimal combustion, improved efficiency and fewer emissions. NTK ceramic engineering and a contaminant‑resistant plasma‑jet element with deposit‑trap overcoat increase resistance to poisoning, enable rapid heat‑up and deliver OE-quality fit and durability.
NGK Audi A8 Quattro 2009-2008 Direct Fit 5-Wire Wideband A/F Sensor
